Edit and debug 100's of arduino boards and 1000's of libraries. Uses the same configuration as the arduino ide (+ advanced mode). Supports all past and current versions of arduino.cc, arduino.org and all compatibles. Hardware and Software Debugging (usb, jtag, ice etc.), serial monitors, local libraries and much more. Also supports Atmel Studio.

Using Multiple Serial Monitors

If you work with multiple Serial connections, then you can open multiple
Serial Monitor windows, one for each COM port. This can be useful if you work
with an Arduino board that has multiple serial ports, or with multiple boards
attached to your PC.

However, with one Visual Studio/Atmel Studio/Visual Micro
session, you can always use only one board for programming and debugging. If
you want to program/debug multiple boards, simply open multiple Visual
Studio/Atmel Studio sessions.

To open a second, third etc. Serial Monitor, select
View > Other
Windows > Arduino Port Monitor and choose the COM port you
want a Serial Windows to be opened for.